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-rw-r--r--fs/btrfs/dev-replace.c4
-rw-r--r--fs/btrfs/volumes.c3
2 files changed, 3 insertions, 4 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 7ad8ae994ca0..fdd2880707df 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -320,10 +320,6 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
 		return -EINVAL;
 	}
 
-	if ((args->start.srcdevid == 0 && args->start.srcdev_name[0] == '\0') ||
-	    args->start.tgtdev_name[0] == '\0')
-		return -EINVAL;
-
 	/* the disk copy procedure reuses the scrub code */
 	mutex_lock(&fs_info->volume_mutex);
 	ret = btrfs_find_device_by_user_input(root, args->start.srcdevid,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 40bbe0a2715b..d74260567bea 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2113,6 +2113,9 @@ int btrfs_find_device_by_user_input(struct btrfs_root *root, u64 srcdevid,
 		if (!*device)
 			ret = -ENOENT;
 	} else {
+		if (!srcdev_name || !srcdev_name[0])
+			return -EINVAL;
+
 		ret = btrfs_find_device_missing_or_by_path(root, srcdev_name,
 							   device);
 	}